Sonic X Volume 11 is the eleventh DVD released in Australia containing three episodes of the anime series Sonic X. As with the other Sonic X Volumes, the DVD also comes with a trailer of Sonic Mega Collection Plus.
Chris is looking for Knuckles on Angel Island to give him the last Chaos Emerald. Sonic and Tails run into Knuckles at a different place at Mystic Ruin, where they find Dr. Eggman lying on the ground. Chaos had been alive, and it had become violent to the point where it would not even listen to Dr. Eggman and attacked him. Seeing Decoe and Bocoe carrying Eggman onto the blimp and flying away, Sonic and the others feel a foreboding danger.
Sonic helps the citizens look for children who are separated from their families at Station Square, where Chaos had left traces of destruction. Chris' family decides to evacuate to the City until things settle down. Just then, Eggman hacks GUN's computer and finds out that this is the world he was born in. He also finds out that his grandfather, Gerard Robotonik is deeply involved with GUN's highly classified information.
Sonic is captured by GUN. It seems that GUN thinks Sonic had snuck into Prison Island to steal the classified information of "Project Shadow". Sonic, who does not have the slightest idea of GUN's allegations, flees from GUN's helicopter and ends up a fugitive. At about the same time, the Chaos Emerald is stolen from the National Museum. The theft is recorded on the surveillance camera. The President, after seeing the tape, comes to the conclusion that Sonic is the criminal.